Arousal and Response
Influences on Sexuality
Hormones
Ethnicity
Religion
Studying Sexual Response
Masters and Johnson’s Four-Phase Sexual Response Cycle
■ SEX IN REAL LIFE Sexual Performance Scams Other Models of Sexual Response
Solitary Sexual Behavior
Sexual Fantasy: Enhancement or Unfaithfulness?
■ PERSONAL VOICES The Best and the Worst of Times Masturbation: A Very Individual Choice
■ HUMAN SEXUALITY IN A DIVERSE WORLD Asian-American Sexuality
■ SEX IN REAL LIFE Sexual Expression on Spring Break
Sexual Behavior With Others
Foreplay: The Prelude?
Manual Sex: A Safer-Sex Behavior
Oral Sex: Not So Taboo Heterosexual Sexual Intercourse
■ HUMAN SEXUALITY IN A DIVERSE WORLD Sex Is Against the Law
Same-Sex Sexual Techniques
Sexual Behavior Later in Life
Physical Changes Changes in Sexual Behavior
■ PERSONAL VOICES The Best Sex I Ever Had
Safer-Sex Behaviors
■ SEX IN REAL LIFE Safer-Sex Behavior Guidelines
Chapter Review Chapter Resources
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uman sexuality is a complex part of life, with cultural, psychological, and biological influences shaping how people choose to express their sexu — ‘ ality. Because of the varied influences, it is important to view sexual behaviors in an open, nonjudgmental fashion. In this chapter, we will discuss adult sexual behaviors from early adulthood through the senior years. After a brief discussion of the role of hormones, ethnicity, and religion, we will explore the human sexual response cycle and various ways that adults express their sexuality.